You could probably make males latitate by giving them hormone injections. So you do that and then you breed from those males who need the least amount of hormone injection in order to latitate. You're selectively breeding. And gradually as the generations go by you gradually wean them off the hormone injections. This is actually a question instructive illustration of something called the Baldwin effect. The Baldwin effect, yes. Will you get very angry? The idea is... The one that live in this city. Yeah, okay. Call now. What about it?